Characterisation of the PsbX protein from Photosystem II and light regulation of its gene expression in higher plants

被引：0
作者：
Lan-Xin Shi
Soo J. Kim
Alan Marchant
Colin Robinson
Wolfgang P. Schröder
机构：
[1] Stockholm University,Department of Biochemistry, Arrhenius Laboratories for Natural Sciences
[2] University of Warwick,Department of Biological Sciences
[3] Södertörn University College,Department of Medical Nutrition, Novum
来源：
Plant Molecular Biology | 1999年 / 40卷
关键词：
4.1 kDa protein; Arabidopsis thaliana; low-molecular-mass proteins; photosystem II; PsbX; spinach;
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摘要：
The location and expression of the previously uncharacterised photosystem II subunit PsbX have been analysed in higher plants. We show that this protein is a component of photosystem II (PSII) core particles but absent from light-harvesting complexes or PSII reaction centres. PsbX is, however, localised to the near vicinity of the reaction centre because it can be cross-linked to cytochrome b559, which is known to be associated with the D1/D2 dimer. We also show that the expression of this protein is tightly regulated by light, since neither protein nor mRNA is found in dark-grown plants.
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页码：737 / 744
页数：7
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